Save humanity from imminent destruction! Set in the vastness of space, Grimmstar has you traveling from solar system to solar system to collect resources, weaken the enemy, and discover hidden technologies as an epic story unfolds before you. ------ Features: 6DOF Flight - Grimmstar takes a flight model more appropriate for space. You will have six degrees of freedom, meaning you can move and rotate in any direction with your ship. Modular Ships - The main fighter ship is based on a completely modular system with each part effecting the ship's performance. This allows you to build a ship perfectly tuned to your play style. Survival - You will need to keep track of your fleet and manage their output so that humanity can stay alive. Research upgrades to your fleets defenses, offensive capabilities, and other outputs to increase your chances. Open Worlds - As you traverse through different solar systems, you will be able to freely warp to any location within the solar system

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It’s been a while since we’ve been able to post an overall update on our game. We originally planned to give these devlogs every month, but things have been picking up faster than anticipated and we had to reprioritize a couple of things to get our deadlines met. That being said, we’re still in the midst of some pretty heavily involved things, but we did manage to squeeze out a new devlog for all of you.

Beauty Shot

To start off, we’ve finally completed the merger of our new flight model that introduces new aiming and movement mechanics to the game. This new system is a huge improvement in overall fell and it also future proofs our design. With the old aiming system, all changes to the ship’s yaw and pitch were done via physics impulses. This effectively led you to “push” the ship with your mouse and small adjustments were very difficult to execute.

The new aiming system places a cursor on your screen. As you move the cursor, the ship will adjust its pitch and yaw to the position, at a speed relative to the distance your cursor is from the center. Currently, we have a radial limiter on how far out you can move your mouse. In the future, we will add the option for screen space, as well as the ability to adjust the maximum limit size for both the radial and screen space limiters. We also have a small dead zone in the center of the screen which will be adjustable as well. This will let you aim your gimballed weapons without changing the orientation of your ship.


The new movement mechanics utilize acceleration curves for every vector of movement. This allows us to change the curves based on the parts you have equipped on your ship. This works perfectly for us, as we plan on having a modular ship design and we want you to be able to choose the performance of your ship to fit your play style. We’ve also added vertical and horizontal strafing of the ship for further precision during flight.

Warping has received several updates. The timing has been adjusted to last a bit longer, but also to give you much more visceral punch of momentum in the beginning. Along with that, mid-warp visuals have been vastly improved. We now have particle effects, camera shake, and radial blur all combining to create a true sense of speed and power as you traverse across the solar system.

We’re very proud to announce the Grimmstar will now be supporting real-time ray tracing with DXR and RTX support! Space is a perfect playground for these new lighting techniques and the results have already been phenomenal. Lighting is now physically accurate with real-time reflections, lifelike shadows, and global illumination that adds bounce light to every scene. The performance impact is quite large, but through our initial optimization pass, we’re able to get 45+ fps while playing in 1080p with an RTX 2080. Again, this is the initial performance pass. We’re going to be working closely with Nvidia and Epic to ensure ray tracing is as optimized as possible for our game, so more people can enjoy all the amazing visual benefits it brings.

Work has been started to produce the first very-super-large-behemoth-of-a-ship, the Civilian Carrier. This is a whole new process for us, as we have to develop the ship in multiple pieces to be assembled in-engine so that we can more flexibility with LODs and material instancing. We’re trying to pre-plan as much as we can and adjust along the way. So far, it’s looking pretty amazing, if I’m allowed to say so myself. We’ll continue to post updates as we progress.

Concept Vehicle CivilianCarrier5

And wrapping things up to save the best for last, we’re almost done with the work on our enemy Swarmer ship. This is the first ship that will be in the game and will act as the primary opponent. These guys attack in large waves and will be formidable opponents if you catch too many of them attacking you at the same time.

model seeder hipoly copy2

The whole process of developing this ship has been a learning experience for us as well. Most ships feature metal plating and might have some interesting shapes with those metal pieces, but the Grimmstar’s forces are mostly made from rock, held together with biomechanical tendrils. The dome piece is an especially vulnerable part of the ship that you should prioritize targeting when given the opportunity.

We’ve passed from the high poly stage to the low poly retopo and baking stage and are now finalizing the ship’s materials in-engine. All that’s left is to set up the turrets and give the ship some AI so they will be a worthy foe.

You can check out the video version of our updates here:

Our last article mentioned us being at iFest in Seattle May 4th. We’re excited to show off Grimmstar there, but we have recently been given the opportunity to present our game at a table at Seattle’s PC Connect May 13th and 14th. If you happen to be there, come stop by and say hi!

Engine Effects (Quite Literally)

Engine Effects (Quite Literally)

News 1 comment

We had to rework our engine thruster effects because the old ones were just... hideous. Made some vast improvements!

Designing Ships - Alien and Human Alike

Designing Ships - Alien and Human Alike


Developing an alien ship that utilizes design techniques seldom (if ever) used before is a daunting task. We think we've found something that works: Alien...

Expanding the Universe

Expanding the Universe


At PAX, Grimmstar took place outside one single planet. We're now expanding the project to stretch to an entire solar system that works as your sandbox.

TUTORIAL - Engine Thruster Sounds

TUTORIAL - Engine Thruster Sounds

Sound Effects Tutorial

Our sound designer, Arsen, goes through his process of setting up some very important sound effects for the play ship's thrusters.


Looks excellent!

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Latest tweets from @grimmstargame

We're live over on Twitch! Come join @braydickey as he works on some new meshes for our updated ore refinery scene!…

Apr 23 2019

Take a peek at our latest showcase for real-time ray traced lighting in our game, Grimmstar. @nvidia

Apr 23 2019

We're going to be streaming in the evening today! Come hang out with @BrayDickey over on twitch at…

Apr 23 2019

Our 2nd devblog just went live! check out our work on finalizing our first enemy combatant, the start of designing…

Apr 22 2019

RT @michaelherauf: wow... look at what the guys at @AstroNaughtyDev are doing with #UE4 and #DirectX12. good stuff!

Apr 19 2019

RT @AstroNaughtyDev: Grimmstar is now fully supporting DXR and real-time ray tracing within Unreal Engine! Come check out the difference…

Apr 19 2019

We're live at so stop by and say hey!

Apr 16 2019

RT @IndieDB: Indie space sim Grimmstar details the process behind the audio design of its engine thruster sounds with this tutor…

Apr 13 2019

Unreal Engine released 4.22 and its given us the chance to play around with some real-time ray tracing. Certainly m…

Apr 12 2019


Apr 12 2019

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